Daniel m



(No Model.)

D. 1v1. SOMERS.

INSGT POWDER GUN.

No. 326,600. APatented Sept..22, 1885.

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IINTTED STATES PATENT OFFICE.

DANIEL M. SOMERS, OF BROOKLYN, NEW YORK.

iNSECT-POWDER GUN.

SPECIFICATION forming part of Letters Patent No. 326,600, datedSeptember 22, 1885. Application led February 29, 1884. (No model.)

To a/ZZ whom t may concern:

Be it known that'l, DANIEL M. SoMEEs, a citizen of the United States,residing in the city of Brooklyn, county of Kings, and State of NewYork, have invented certain new and useful Improvements in Insect-PowderGuns, fully described and represented in the following specification andthe accompanying drawings, forming a part of the same.

These instruments, designed as powder-distributers, operate by forciblyexpelling a powder by means of a blast of air, and they hence require tobe constructed with tight joints that render their bellows actionperfect. Inasmuch as they are commonly given away, or sold at aninconsiderable sum to the purchaser of an insect-exterminating compound,they 'must be produced at a minimum cost, and

hence the efforts of the manufacturer are directed to the cheapening ofthe structure of the parts themselves and to reducing the 0perationsnecessary to attach them together.

The improvements effected by this invention, whereby a simple, cheap,and effective gun is obtained, consist in a structure of parts wherebythe spring is attached without soldering or swaging or riveting the samein place in a structure whereby the securing of the spring, thethumb-plate, and flexible diaphragin are simultaneously secured and abreeclrloadiug opening is formed.

The improvements are illustrated in the accompanying drawings, in whichis shown, by Figure l, a side elevation of the insect-gun; Fig. 2, anenlarged vertical sectional elevation thereof, Fig. 3, a view of theunder side of the inner plate; Fig. 4, a sectional elevation of the sametaken on the line x x; Fig. 5, an outside view and sectional elevationof the outer plate, and Fig. (i a sectional elevation of theclampingvring before being attached.

The body A of the gun consists of a short cylinder', B, from whichextends the pipe C, a metal-plate bottom, D, secured tothe cylinder by aturned lapped seam, and a flexible top or diaphragm, E, secured by aclamping-rino, F, that is attached to the cylinder bya turned lappedseam that embraces a fold of said diaphragm, and thus effectually holdsit against displacement. This diaphragm carries the plates Il I, whichconstitute a thumb-piece, and whereby is secured one end of the springS, Whose other end bears against the inside of the bottom D,.whicl1plates are perforated to provide the breech-loading opening O.

Of course, though the cylinder is shown as circular and with parallelsides, any other shape may be given to it.

The plates H I that secure the diaphragm and the spring are peculiar.The inside plate, H, slightly concave-convex, is perforated with acentral hole with a plain edge, and has raised from its outer surface,so as to project from its inner surface, a bead, 2, that is concentricwith its outer edge andsaid central hole. municating with this bead is aperforation, 3, large enough to admit the passage of the end of the wirespring through it, and thev said bead is of a size that will form arecess of dimensions suited to receive nearly one coil of said wirespring, and said bead vanishes as its one end approaches saidperforation 3, or, in other words, stops short of reaching saidperforation, so that the end of -the bead com'- municating therewith anddepressing one side of said perforation will provide ay suitableentrance for the spring, and thus will not require it t0 be given adetermined bend in order to properly enter the perforation and lie inthe bead. The coil passed through this plate lies snugly in the saidbead, as appears in Figs. 2 and 4, and does not practically protrudeabove the surface of said plate. The outer plate, I, is also slightlyconcave-convex, and is provided with a central opening having a ilangededge, 4, as seen in Figs. 2 and 5.

Vhen the end coil of the spring has been arranged in the plate H, asshown in Fig. 2, the centrally-perforated fiexible diaphragm E is laidthereon, the plate I is placed upon the whole, so that the flange 4 ofits central opening will enter through the opening in the plate H, andthen said (lange is turned down and swaged onto the face of the plate H.This causes the two plates H I to be firmly and securely united togetherand the diaphragm E to be embraced and clamped between the two, and theswaging down of the flange 4 at the same time provides thebreech-loading opening with a doubled edge that adapts it to receive itsplug and permit its withdrawal without abrading.

The attaching of the diaphragm to the cylinder B is accomplished asfollows: The up- IOO per edge of said cylinder is first formed with aright-angular outwardly-projecting flange, 5. The diaphragm is laid uponthis, and the ring F, in the shape shown in Fig. 6, is laid upon thewhole. This causes the extreme portion of the diaphragm to`be bent, soas to lie against the fiange 6 of the ring F, and when the tool is usedto turn said flange 6 under the flange and carry all down parallel withthe sides of the cylinder B it causes the material of the diaphragm tobe embraced between the flanges 5 and 6 and to be bent with them againstthe sides of the. cylinder. The diaphragm thus gets a double bend thatforms an air-ti glit joint, and one that may not easily be injured byeX- tensive use of the gun.

The provision of the breech-loading opening 0 at the top of the gun isof great convenience and usefulness. It enables the gun to be ch argedwithout being turned over, and when the gun is charged and put to usethe said opening is at the top, while the powder rest-s -upon thebottom, and hence the liability of the powder being expelledthrough theopening is greatly lessened.

This mode and structure for the attaching of a spring may be applied toany other instrument requiring such a device, and it is to be observedthat the same may be applied when the two plates are held together byriveting or at their edges, and whether with or without the centralopening.

The flange 4 it is obvious may be provided on the plate H instead of onthe plate I; and, furthermore, the flange might be omitted and an eyeletbe inserted within the opening formed in the two plates and be flallgedupon the upper and lower plates, so as to unite them together and stillprovide the opening O, and secure the end of the spring between them, as4o can be readily seen.

What is claimed is- 1. The combination, with a spring-supporting plate,H, having a curved recess and a perforation communicating therewith, andprovided with a central opening, of a second plate, I, provided with acentral opening, both of which plates are adapted to be united at saidopenings, so that the end of the spring is embraced between them andsecurely held therein, substantially as described. Y

2. In a powder-gun, the combination of the spring S with the plate H,having curved recess 2, perforation 3, and central opening, and plate I,having central opening, and attaching-flange 4, substantially asdescribed.

3. In a powder-gun, the combination, with the flexible diaphragm, of theplate H, having central opening, and the plate I, having central openingand attaching-flange, whereby the diaphragm is secured to itsthumb-piece and the breech-loading opening is formed, substantiallyrasdescribed.

4. The combination of the plate H, having the curved recess 2,perforation 3, spring S, plate I, having central opening andattachingflange 4, and the flexible diaphragm, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing 7o witnesses.

DANIEL M. SOMERS.

Witnesses:

A. N. JAsBERA, T. H. PALMER.

